Transmission properties of a single metallic slit:: From the subwavelength regime to the geometrical-optics limit -: art. no. 026601

被引：130

作者：

Bravo-Abad, J ^{[1
]}

Martín-Moreno, L

García-Vidal, FJ

机构：

[1] Univ Autonoma Madrid, Dept Fis Teor Mat Condensada, E-28049 Madrid, Spain

[2] Univ Zaragoza, Dept Fis Mat Condensada, ICMA, CSIC, E-50009 Zaragoza, Spain

来源：

PHYSICAL REVIEW E | 2004年 / 69卷 / 02期

关键词：

D O I：

10.1103/PhysRevE.69.026601

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

In this work we explore the transmission properties of a single slit in a metallic screen. We analyze the dependence of these properties on both slit width and angle of incident radiation. We study in detail the crossover between the subwavelength regime and the geometrical-optics limit. In the subwavelength regime, resonant transmission linked to the excitation of waveguide resonances is analyzed. Linewidth of these resonances and their associated electric-field intensities are controlled by just the width of the slit. More complex transmission spectra appear when the wavelength of light is comparable to the slit width. Rapid oscillations associated with the emergence of different propagating modes inside the slit are the main features appearing in this regime.

引用

页码：026601 / 1

页数：6

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